noaa-lake-6066
Marcella Lake, Yukon 4,500 Year Stable Isotope Data
Anderson, L.; Abbott, M.B.; Finney, B.P.; Burns, S.J.
Marcella Lake, Yukon 4,500 Year Stable Isotope Data
2008-01-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/6066
Investigator
L.
Anderson
Investigator
M.B.
Abbott
Investigator
B.P.
Finney
Investigator
S.J.
Burns
earth science
paleoclimate
paleolimnology
delta 18O,carbonate,null,per mil VPDB,null,paleolimnology,smoothed,null,N,charophyte encrustation; 50-year smooth
earth science
paleoclimate
paleolimnology
delta 18O,carbonate,null,per mil VPDB,null,paleolimnology,anomalized,null,N,charophyte encrustation; difference from record mean
earth science
paleoclimate
paleolimnology
delta 18O,carbonate,null,per mil VPDB,null,paleolimnology,null,null,N,charophyte encrustation
earth science
paleoclimate
paleolimnology
depth,null,null,centimeter,null,paleolimnology,composited,null,N,null
earth science
paleoclimate
paleolimnology
delta 13C,carbonate,null,per mil VPDB,null,paleolimnology,null,null,N,charophyte encrustation
earth science
paleoclimate
paleolimnology
age,null,null,calendar year before present,null,paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
oxygen isotopes
geoscientificInformation
4732 cal yr BP
-50 cal yr BP
Complete
60.073306
60.073306
-133.805462
-133.805462
749
749
Continent
North America
Canada
Yukon Territory
Marcella Lake>LATITUDE 60.073306>LONGITUDE -133.805462
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Anderson, L.,Abbott, M.B.,Finney, B.P.,Burns, S.J. 2007. Late Holocene moisture balance variability in the southwest Yukon Territory, Canada. Quaternary Science Reviews, Vol. 26, pp. 130-141.
Analyses of sediment cores from Marcella Lake, a small, hydrologically closed lake in the semi-arid southwest Yukon, provides effective moisture information for the last ~4500 years at century-scale resolution. Water chemistry and oxygen isotope analyses from lakes and precipitation in the region indicate that Marcella Lake is currently enriched in 18O by summer evaporation. Past lake water values are inferred from oxygen isotope analyses of sedimentary endogenic carbonate in the form of algal Charophyte stem encrustations. A record of the d18O composition of mean annual precipitation at Jellybean Lake, a nearby evaporation-insensitivesystem, provides data of simultaneous d18O variations related to decade-to-century scale shifts in Aleutian Low intensity/position. The difference between the two isotope records, Dd, represents 18O-enrichment in Marcella Lake water caused by summer effective moisture conditions. Results indicate increased effective moisture between ~3000 and 1200 cal BP and two marked shifts toward increased aridity at ~1200 and between 300 and 200 cal BP. These prominent late Holocene changes in effective moisture occurred simultaneously with changes in Aleutian Low circulation patterns over the Gulf of Alaska indicated by Jellybean Lake. The reconstructed climate patterns are consistent with the topographically controlled climatic heterogeneity observed in the coastal mountains and interior valleys of the region today.
STUDY NOTES: Marcella Lake, Yukon Territory, Canada stable isotope data. Carbon and oxygen isotope ratios (per mil VPDB) from Charophyte stem encrustatations of composite core C/E, ~4.5 m water depth
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/yukon/marcella2007.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/canada/yukon/marcella2007.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11